Side bearing



vUmran-.sfra'rlazs PAEENT OFFICE.

JOHN r. oooNNoIt, or 'oI-IIoAGo, ILLINOIS, AssIeNoit To WILLIAM H. MINER 0F cHAzY, New YORK.

SIDE BEARING.

To all 'Lo/tom at may concern Be it known that I, JOHN F. OCONNOR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Side Bearings, of which the following is a full, clear, concise, and exact description', reference being had to the accompanying drawings, forming a part of this specification. y K

This invention relates -to improvements in side'bearings.

The object of the invention is to provide a side bearing more particularly adapted for railway cars and whereinthe bearing is of simple, efcient and relatively inexpensiveconstruction and so arranged as to constantly shift the points ofcontact of the anti-friction element.

In the drawings forming a part of this specification, Figure 1 is a vertical, sectional view taken through the end portions of a body and a truck bolster of a car showing my improvements in connection therewith. Fig. 2 is a horizontal, sectional view taken substantially on the line 2 2 of Fig. 1. And Fig. 3 is a vertical, sectional View taken on the line 3 3 of Fig. 1. I

In said drawings, 10 denotes the upper section of a truckbolster and 11 the under section of an opposed body bolster. The improved side bearing is preferably secured to the under side of the body bolster and, as shown, comprises broadly, a housing A, anti-friction roller B, lloating trunnions or disks C-C, flexible axle D, and upper striking plate E. i Y

The housing A is of hollow, substantially box Vform open at its top and bottom and having end walls 12-12 and side walls 13-13. Gn its interior near the upper part thereof, the housing is provided with inwardly projecting shoulders 1st-14 arranged to clamp the striking plate E in position against the bolster. Y Said plate E is preferably provided with a steel insert, as indicated at 16, to better resist wear. The housing A is secured to the bolster by rivets or other suitable means extending throughv suitable lugs formed integrally with the housing.

The roller B is of cylindrical form and is provided with an axially extending recess or bore 17 the same beilig flared out- Specicaton of Letters Patent. Application filed January 20, 1919.

Serial No. '271,940.

wardly toward each 18.*18. At each end, the roller is provided with annular flanges 19-19, the same being adapted to rest upon inturned flanges 20`20 on the lower edges of the side walls 13.

The.. disks C+C are centrally apertured as indicated at 21, in which apertures are received the ends of the flexible axle or journal D, the latter comprising a coil spring, as clearly indicated 'in the drawing. The disks C-C are adapted to travel along' oppositely and upwardly inclined tracks 22-22 formed on the inner faces of the side Walls 13 and outside of the horizontal portions 20 of the flanges on which end as indicated at Vare adapted to ride said anges 19.

The operation is as follows: The roller is normally slightly spaced from the upper striking plate and of course is spaced the usual distance from the opposite bolster. When the side bearing comes into operation, and assuming that the upper bolster remains stationary and the lower bolster nioves to the right, as viewed in F ig.y 1 the roller B will be moved or rolled to the position indicated by the dotted lines in Fig. 1. During this rolling movement, it is evident that the disks C-C will travel towardthe Vend of the housing in accordance with the movement of the roller but in this movement the disks C-C will roll up the inclined tracks 22. This action is permitted on account of the flexible journal D. When the pressure from the truck bolster is removed at the end of the actuation, it is evident that the weight of the roller will be carried by the disks C-C and the latter will roll down the inclined tracks until central normal position is reached, carrying the roller B therewith. Not only does this insure the'return of the roller to central position after each actuation, but it will be noted that the roller while being actuated, rolls on a curved surface having the radius of the roller B and consequently the roller will rotate through a relatively small arc. During the return movement, however, the disks being of smaller diameter will require a rotating movement through a greater arc in order to return the same distance so that the roller B, during the return movement will be rotated through a greater arc than during the actuating movement. This in- Y Patented N ov..30, 1920.

suresconstantly changing points of contact of the bearing surface of the roller B and promotes the life thereof.

I' claim:

l. ln an anti-friction bearing or'railway cars, the combination with a housing adapted to be secured to the under side of a body bolster; of a roller mounted within .said housing and adaptedf'lior rolling movement in a horizontal line onlywhile being` actuated; of means disposed opposite the ends of Ysaid'roller arranged for movement ofthe center( 01 gravity thereof both horizontally and vertically simultaneously with and proportionally to the horizontal displacements of the roller; and il Xible means extending axially of the roller and interposed between saidV first named means and the roller for supporting the latter from the first named means at all times when theY bearing is not being actuated. Y v i 2.111 an anti-friction bearing, the com- Y bination with a housing, of a roller mounted within said housing and adapted to roll horizontally thereimseparate rotatable elementsv at the ends ofsaid roller, inclined tracls tor said elements, and' flexible means extending between said elements and the roller kadapted to communicate movement from the roller to said elements and vice versa.

Vinterposed between said'disks, and .a ilexible axle extending through the roller and having` its lends supported by said disks.

In witness that claim the foregoing I have hereunto subscribed'rmy name 'this 2nd day of Jan. 1919. A Y

' JOHN 'F.f ofcoNNoR. 

